Active Visualization of Non-destructive Inspection for Metal Using Terahertz Camera and Light Source

Abstract

Terahertz waves are electromagnetic waves which are frequency bands ranged from 0.1–10 THz. These waves have high transparency to non-metal, and high reflectivity for the metals. Expected to be application to non-contact exploration sensor for the dangerous goods, bomb, knife, and so on, the development to railway and airport is considered. In this paper we aim to construct a terahertz system that can be mounted on the mobile robots, and to visualize the metal object behind these clothes.